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Merge pull request #17977 from Snuffleupagus/parseImageProperties-TypedArray

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Update `JpxImage.parseImageProperties` to support TypedArray data in IMAGE_DECODERS builds
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Tim van der Meij 2024-04-22 18:31:31 +02:00 committed by GitHub
commit 522af265a7
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1 changed files with 8 additions and 0 deletions
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8
src/core/jpx.js
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@ -15,6 +15,7 @@
import { BaseException, warn } from "../shared/util.js"; import { BaseException, warn } from "../shared/util.js";
import OpenJPEG from "../../external/openjpeg/openjpeg.js"; import OpenJPEG from "../../external/openjpeg/openjpeg.js";
import { Stream } from "./stream.js";
class JpxError extends BaseException { class JpxError extends BaseException {
constructor(msg) { constructor(msg) {
@ -39,6 +40,13 @@ class JpxImage {
} }
static parseImageProperties(stream) { static parseImageProperties(stream) {
if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("IMAGE_DECODERS")) {
if (stream instanceof ArrayBuffer || ArrayBuffer.isView(stream)) {
stream = new Stream(stream);
} else {
throw new JpxError("Invalid data format, must be a TypedArray.");
}
}
// No need to use OpenJPEG here since we're only getting very basic // No need to use OpenJPEG here since we're only getting very basic
// information which are located in the first bytes of the file. // information which are located in the first bytes of the file.
let newByte = stream.getByte(); let newByte = stream.getByte();